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Yes, they can. Digital signals are those in which there's just two states to be deciphered: high and low. This is the same concept as binary information (numbers), which is represented with the numbers 0 and 1. The prefixed di- and bi- both mean "two," representing the two possible states.
What else can I help you with?
What is digital signal?
There are many forms of digital signals PWM, PAM, and more Basically is a signal that carry information to be extracted to its original form.
Does a T line carry digital data over twisted pair wires?
Yes it does. It will carry digital data as well as voice signals.
What method of signal transmission uses radio waves to carry signals?
The analog method of signal transmission uses radio waves to carry signals. Digital transmission involves the use of satellites to transmit signals.
Which type of broadband internet uses the phone line to carry digital signals at high speeds?
Digital Subscriber Line (DSL)
Advantage of digital signal?
Higher immunity to noise, storage of digital signal is cheap and easy, its representation is only using two levels as opposed to infinite levels for analog
What similarities between analog and digital signals?
ANALOG:continuous,rate of transmission is slow,less reliable 2 transmit,more noise,interference is more DIGITAL:non continuous,rate of transmission is fast,more reliable 2 transmit,less noise,interference is less
Why is analogue a series of pulses?
An analogue signal is not a series of pulses. An analogue signal is a continuous signal which is modulated (changed) in some way to carry information. Common modulations for analogue are Amplitude Modulation (AM), and Frequency Modulation, (FM). There are some others but are not needed here.
What converts analogue signals to digital signals for transmission over telephone lines?
Actually you have this backwards, the telephone lines can only carry analogue signals (voice band, 20Hz to 3KHz) not digital signals.The device that converts digital signals to analogue signals for transmission over telephone lines is called a phone MoDem(this stands for phone modulator demodulator). At the opposite end of the line it of course converts the telephone analogue signals back to digital signals.
What video types support or carries both analog and digital signals?
Analog and digital video signals don't mix well so there are few interfaces that handle both. HDMI is purely digital and has no capacity to carry analog signals. RCA, phono or scart connections are analog with no provision to carry digital video. In broadcast studios, 75 ohm co-ax cable is used almost exclusively to carry video. The same cables will carry analog video or digital video depending on what they are connected to. The decision to make broadcast digital signal run on the same cable as analog video has greatly smoothed the transition to digital broadcasting. As far as domestic video is concerned, the only dual standard interface that is recognized is the DVI connector. Primarily a computer display interface, it carries digital video but will also handle analog VGA signals on the same cable. Furthermore, the two signals can be carried simultaneously and can be the same or different images. As the digital video component of a DVI interface is compatible with the video component of HDMI, it can carry broadcast signals as well as computer display data so it can be described as a video cable. Note that although DVI and HDMI are compatible, DVI does not carry the audio element of the signal whereas the HDMI interface does.
How does the look ahead adder improve the efficiency of arithmetic operations in digital circuits?
The look ahead adder improves efficiency by reducing the time needed to perform addition in digital circuits. It does this by generating carry signals in advance, allowing for faster computation of sums without waiting for carry signals to propagate through the circuit.
What is a long distance digital telephone line that can carry multiple signals over a single communications line?
fibre optic cable !
Does an S-Video cable also carry audio?
S-video cables carry two video signals. One carries brightness information (the Luma signal) and the other carries color information (the Chroma signal). Together they deliver a complete color picture. There is no audio carried by the cable, either as a separate signal or imbedded in the video signals. To get audio, another cable or set of cables will be needed. There are some multi-pin connectors that carry not only vide but audio and control as well. The SCART connector which is commonly available in Europe is one such example. This connector can carry a variety of video signals, two channel audio and some control lines as well. Most of the analog multi-pin connectors are being replaced by HDMI, a digital connection that carries all signals in a digital encoded format.
